a collaborative learning support system based on question posing

... pH and light irradiation) stimuli-responsive nanosystem based on CeO2 coated MSN In this nanosystem, MSN was prepared as vectors for DOX and HP, and CeO2 NPs was adopted as gatekeeper as well as ... desorption isotherms were measured at liquid N2 temperature using a Quantachrom Autosorb-iQ, after degassing samples for 12 h at 120 °C Surface area was calculated according to the conventional BET ... Pharmacological potential of cerium oxide nanoparticles Nanoscale 3, 1411–1420 (2011). 56 Menchón, C et al Gold nanoparticles supported on nanoparticulate ceria as a powerful agent against intracellular

Ngày tải lên: 19/11/2022, 11:49

... on the load and the operating conditions like air pressure, oxygen partial pressure, cell temperature, and membrane water content Using MATLAB simulation with various values of temperature and ... performance Several approaches have been considered in the literature to reduce or avoid chattering phenomenon, among them: - Replacement of the discontinuous control by a saturation action The control ... state is maintained on this surface, the system is in sliding mode Its dynamic is then insensitive to system parameter variations and external disturbances as long as the sliding mode conditions

Ngày tải lên: 11/06/2024, 22:02

... gear and pinion In certain applications, the pinion often failed to mesh properly during cranking as the engine was nearly operational Additionally, contamination from clutch dust frequently caused ... conventional pre-engaged starters, the epicyclic intermediate transmission features a sun gear on the armature shaft, with the planet carrier driving the pinion, while the stationary ring gear ... engagement while the engine is already running. 2.5.1.2: Armature shaft and rear bushing Figure 2 16: Armature shaft and rear bushingArmature shaft and rear bushing generates motor rotation and

Ngày tải lên: 29/11/2024, 12:06

... Agbo-Ajala and Viriri introduced a face-based classification model for age and gender, also based on AlexNet, featuring convolutional layers, ReLU activation, batch normalization, max-pooling, ... contrast, computer vision-based methods employ cameras and advanced algorithms to analyze and identify barriers in the environment Finally, smartphone-based approaches leverage smartphone cameras ... batch normalization, non-linear activation, and 2x2 pooling layers Stream 1 employs ReLU activation and average pooling, while Stream 2 uses Tanh activation and max pooling This strategic variation

Ngày tải lên: 11/11/2021, 11:01

... convolutional and two fully-connected layers, along with components like max-pooling, normalization, dropout layers, and ReLU activation functions Similarly, Agbo-Ajala and Viriri developed a face-based ... track their location, with data managed on a server Additionally, Cheraghi et al introduced GuideBeacon, a wayfinding system that utilizes Bluetooth beacons within a designated area to facilitate ... cross-correlation in place of traditional convolution operations, and the training is facilitated by a second-order backpropagation algorithm coupled with the stochastic diagonal Levenberg–Marquardt

Ngày tải lên: 05/10/2023, 12:05

... used passive vibration control device When a mass-spring system, referred to as primary system, is subjected to a harmonic excitation at a constant frequency, its steady-state response can be ... s s a s a a a a a s a a a a (3) Eq (3) denotes a set of linear algebraic equations with two unknowns usand ua It follows that 2 0 0 , , s s a a u F k ic u (4) and 2 0 (5) The formula (5) ... of a DVA to reduce the vibration amplitude of primary system The parameters of primary system are listed in Table 1 Table 1 Parameters of primary system Parameter Variable Value Unit damping

Ngày tải lên: 03/03/2020, 21:07

... equipment’s capacity as the main goal Wang et al (2010) designed a CCHP system with consideration of PGU and storage tank capacity as decision variables On-off coefficient and Trang 3M Rabbani et al “electric ... Electrical load Cooling load Heating load Storage tank + + + Heat exchanger Fig 1 Schematic of a CCHP system (Sanaye & Hajabdollahi, 2015) Operational planning of CCHP systems is usually conducted ... cool load” ratio was considered as decision variables too This research was extended by an investigation a biomass gasification CCHP system (Wang et al., 2014) In this research the capacity of

Ngày tải lên: 14/05/2020, 22:35

... Trang 1S O F T W A R E Open AccessFeatureSelect: a software for feature selection based on machine learning approaches Yosef Masoudi-Sobhanzadeh, Habib Motieghader and Ali Masoudi-Nejad* Abstract ... capabilities are available Data are converted to the range [0,1] in both the fuzzification and normalisation stages TXT, XLS and MAT formats Fig 2 Framework of FeatureSelect Trang 5are acceptable ... precision, convergence and stability diagrams for error, accuracy and classification, standard deviation, confidence interval and many other essential statistical results FeatureSelect is straightforward

Ngày tải lên: 25/11/2020, 12:10

... edducational hyperm edia applications a learner mcodel is the basis for the adaptation This adiaptation process based on each learner incdividually, to his/her knowledge, needs, prceferences, learning ... f all, learning resources that stored in m etadata file are selected base on learner profile and adaptation rules which aforem entioned Secondly, according to adaptive navigation technique, one ... Dl) A passed (Dj, Value) è Ỡ => p_obs(D j, Ui, Learned) 3.2.4 Adaptation Com ponent In this paper we only focus on adaptation com ponent for learning activities with adaptive activity annotation

Ngày tải lên: 25/01/2021, 02:09

... China Abstract An enterprise resource planning (ERP) is an enterprise-wide application software package that integrates all necessary business functions into a single system with a common database ... to give evaluation information of each ERP system with respect with each attribute Step 5: Aggregate all external professional eva-luation information to obtain an objective decision matrix Step ... decision matrix D k Calculate group decision matrix D by means of Similarity degree based aggregation algorithm Gather the preference information of all decision makers on alternative pairs:

Ngày tải lên: 25/01/2021, 13:26

... Adaptation Component In this paper we only focus on adaptation component for learning activities with adaptive activity annotation About adaptive content generation, we presented in [5] For adaptive ... Introduction∗ In adaptive educational hypermedia, there are a variety of research works about questions on how to adapt curricula and learning content to individuals and groups of learners has been done ... Vietnam National University Hanoi Abstract For recently years the research of adaptation of computer education has been an important topic Although Adaptive Educational Hypermedia Systems (AEHS)

Ngày tải lên: 27/01/2021, 06:03

... Learned) 3.2.4 Adaptation Component In this paper we only focus on adaptation component for learning activities with adaptive activity annotation About adaptive content generation, we presented ... specification that make possible diverse types of adaptation such as Learning flow based, content based, interactive problem solving support, adaptive user grouping, adaptive evaluation and changes ... Adaptation engine Adaptation process selects learning resources through phases First of all, learning resources that stored in metadata file are selected base on learner profile and adaptation

Ngày tải lên: 18/03/2021, 10:29

... mechanical lateral distal femoral angle CFA: coronal femoral angle SFA: sagittal femoral angle STA: sagittal tibial angle JLOA: joint line orientation angle Trang 5normal distribution Non-normally ... outcome and quality TKA: total-knee arthroplasty DFVR: distal femoral valgus resection mMPTA: mechanical medial proximal tibial angle CFA: coronal femoral angle SFA: sagittal femoral angle STA: sagittal ... measured on post-operative X-ray images DFVR, CFA, mLDFA, mMPTA, and JLOA were measured on standing full-length radiographs, while STA and SFA were measured on lateral radiographs Angular measurements

Ngày tải lên: 01/04/2021, 03:32

... Trang 1HỌC VIỆN KỸ THUẬT MẬT MÃKHOA AN TOÀN THÔNG TIN BÁO CÁO MÔN HỌC KỸ THUẬT GIẤU TIN Đề tài: A Hybrid Steganography System based on LSB Matching and Replacement Sinh viên thực ... trình của giai đoạn nhúng Bước 1: Khởi tạo Trong bước này, các biến được khởi tạo như sau: Tạo PRNG seed Trang 8CI ← ảnh bìaCCI ← bản sao của ảnh bìa [M,N] ← kích thước của ảnh bìa trong đó PRNG ... trong ảnh dựa trên LSB – đối sánh và thay thế Nội dung được trình bày trong 2 chương: Chương 1: Tổng quan mã hóa dựa trên LSB Chương 2: Thuật toán mã hóa dựa trên LSB Trang 4CHƯƠNG 1: TỔNG QUAN

Ngày tải lên: 18/02/2022, 07:46

... Russo Manager, Urban Division Department of Land Conservation and DevelopmentJames Knight Manager, Rural and Community Services Division Department of Land Conservation and Development Past Executive ... benchmarks forspecial attention, and to ensure that those benchmarks are important to state elected officials Alsoseveral departments (including State Police, Transportation, and the Adult and Family ... Lattimer Director Audits Division, Secretary of State Performance, Department of State Police Mike Marsh Deputy Director Finance and Administration Operations Department of Transportation Anna

Ngày tải lên: 18/10/2022, 20:11

... present a classification of groupware systems based on the work done by DeSanctis and Gallupe(1987) Usually, CSCW can be classified into four groups based on two taxonomies: co-location and synchronization ... data between GSM mobile stations and external packet data networks GPRS supports X.25 (Malis, Robinson, & Ullmann, 1992), IPv4 (ISI, Trang 4Sharon et al / Procedia - Social and Behavioral ... about) Partial rules are based on the task analysis and the other are referring to the task-stakeholder authority matrix In the task analysis, processes can be breakdown into works and relationships

Ngày tải lên: 01/11/2022, 08:30

... Cortajarena2, Patxi Alkorta2and Jose M Gonzalez de Durana1 1 Engineering School of Vitoria, University of the Basque Country, Nieves Cano 12, 01006 Vitoria,Spain; E-Mail: josemaria.gonzalezdedurana@ehu.es ... Europe and North America.High growth rates can be expected in several Latin American countries, in particular in Brazil, as well as in new Asian and Eastern European markets In the mid-term, also ... torque can be calculated by: Tm(v)= Pm(v) wm = Pm(v) λv R Trang 5The DFIG can be regarded as a traditional induction generator with a nonzero rotor voltage.The dynamic equation of a thee-phase DFIG

Ngày tải lên: 02/11/2022, 08:46

... domain (FrFD) by using the fractional Fourier operators, such as the fractional Fourier transform (FrFT), fractional traslation, fractional convolution and fractional correlation Image encryption ... encoding, fractional Fourier transform, fractional traslation, fractional convolution, fractional correlation (Somefigures may appear in colour only in the online journal) 1 Introduction Optical techniques ... 02:19 Please note that terms and conditions apply Generalized formulation of an encryption system based on a joint transform correlator and fractional Fourier transform View the table of contents

Ngày tải lên: 02/11/2022, 10:42

... that the conventional semi-orthogonal user selection based on a greedy algorithm cannot provide a globally optimal solution due to its semi-orthogonal property To find a more optimal user set and ... We assume that perfect channel information is avail-able at each MS and that this channel information is fed back to the BS using a feedback link After computing all M CQIs, the MS feeds back one ... level) quantizers In the case of RBF based system, the CQI quantization boundaries are represented in Table 1 The CQI quantization boundaries in SUS-ee based system are represented in Table 2 4.5

Ngày tải lên: 02/11/2022, 14:34

... the ADAS experience.ADAS applications typically utilize either a mono front camera or a stereo-vision camera, often enhanced by data from additional sensors like LIDAR or RADAR These cameras are ... careful quantization of reparameterization-based detectors to avoid performance degradation during training and inference Additionally, previous research has overlooked deployment considerations, ... precision on benchmark dataset.TRAFFIC SIGN RECOGNITIONTraditional Traffic Sign Recognition (TSR) methods are categorized into color-based, shape-based, and machine learning-based techniques Color and

Ngày tải lên: 06/10/2023, 09:56